The invention discloses an externally applied 
unguent for treating bedsore and a preparation method thereof. The externally applied 
unguent for treating bedsore is characterized by comprising the following 
traditional Chinese medicine raw materials by weight: 15g of cooked rhubarb, 30g of dried 
alum, 30g of calcined 
gypsum, 10g of sanguis draconis, 6g of notoginseng 
powder, 30g of 
honeycomb, 15g of elephant hide, 20g of 
lithospermum, 15g of 
earthworm, 15g of 
bletilla, 15g of caulis spatholobi, 20g of calcined fossil fragments, 20g of clove, 2g of musk, 15g of 
cassia twig, 20g of 
indigo naturalis, 30g of aloe, 10g of folium artemisiae argyi, 15g of poria cocos, 15g of cortex moutan, 10g of 
pollen pini, 15g of 
astragalus membranaceus, normal dosage of 
sesame oil, 5g of membrane of hen egg and 2500u of 
heparin for injection. Except the membrane of hen egg, the 
traditional Chinese medicine raw materials are grinded into 
powder; the 
sesame oil is added to mix into paste; the paste is put into a perforated aluminum specimen box and then the perforated aluminum specimen box is put into a pot for 
steaming; after cooling, the 5g of powdery membrane of hen egg is added to mix for after use. During the use, the 2500u of 
heparin is added to mix uniformly for 
external application. The externally applied 
unguent for treating bedsore is used for 91 bedsore patients, wherein healing occurs on 46 patients, excellence occurs on 22 patients, effectiveness occurs on 18 patients, ineffectiveness occurs on 4 patients, the total effective rate is 94.5% and no complications such as local 
skin allergy and the like are caused.